Vorona Temporal range: Late Cretaceous, 70 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Clade:	Dinosauria
Clade:	Saurischia
Clade:	Theropoda
Clade:	Avialae
Clade:	Ornithothoraces
Genus:	†Vorona Forster et al., 1996
Species:	†V. berivotrensis
Binomial name
†Vorona berivotrensis Forster et al., 1996

Vorona (/ˈvʊəruːnə/ VOOR-oo-nə; Malagasy for "bird",^{[clarification needed]} V. berivotrensis, "from Berivotra") is a monotypic genus of prehistoric birds. It was described from fossils found in a Maevarano Formation quarry near the village of Berivotra, Mahajanga Province, Madagascar. The age of the fossilised specimen is Late Cretaceous, probably Maastrichtian (72.1-66.0 mya). V. berivotrensis is known from scattered remains, possibly from a single individual (UA 8651 and FMNH PA715).^{[citation needed]}

The phylogenic affinity of Vorona is hard to determine due to the fragmentary nature of the remains, mainly because the fossil shows a mix of basal avian features as well as some that seem very derived. Vorona might be a primitive ornithuromorph. At least two studies recovered it as part of Enantiornithes, however.^[1]^[2]

Vorona is sometimes confused with the dromaeosaur Rahonavis ostromi, a fossil of which was found in the same location. This confusion has led to the common misconception that Vorona had a deinonychosaur-like sickle claw on each foot.^{[citation needed]}

References

†Imperobator †Palaeopteryx? †Pneumatoraptor †Rahonavis
†Scansoriopterygidae?	Ambopteryx Epidexipteryx Scansoriopteryx Yi
†Anchiornithidae	Anchiornis Aurornis Caihong Eosinopteryx Fujianvenator Liaoningvenator? Ostromia Pedopenna Serikornis Xiaotingia Yixianosaurus
†Archaeopterygidae	Alcmonavis? Archaeopteryx Wellnhoferia Anchiornithidae?
†Dromaeosauridae	see Dromaeosauridae
†Troodontidae	see Troodontidae

Avialae

†Alcmonavis †Balaur? †Cretaaviculus? †Fukuipteryx †Overoraptor †Rahonavis? †Yandangornis †Zhongornis †Anchiornithidae? †Archaeopterygidae? †Scansoriopterygidae?
†Jeholornithiformes	Dalianraptor? Jeholornis Jixiangornis? Kompsornis Neimengornis

Pygostylia

†"Proornis"

†Omnivoropterygidae?

Omnivoropteryx
Sapeornis

†Confuciusornithidae

†Jinguofortisidae

Ornithothoraces

†Enantiornithes	see Enantiornithes
Euornithes	see below↓

Euornithes

†Archaeorhynchus †Bellulornis †Brevidentavis †Changmaornis †Changzuiornis †Chaoyangia †Dingavis †Eogranivora †Gansus †Gargantuavis? †Hollanda †Horezmavis †Iteravis †Jianchangornis †Jiuquanornis †Juehuaornis †Kaririavis †Khinganornis †Meemannavis †Platanavis †Vorona †Wyleyia? †Xinghaiornis †Yumenornis †Zhongjianornis
†Schizoouridae	Mengciusornis Schizooura
†Patagopterygiformes	Alamitornis Kuszholia? Patagopteryx
†Ambiortiformes	Ambiortus Apsaravis? Palintropus?
†Hongshanornithidae	Archaeornithura Hongshanornis Longicrusavis Parahongshanornis Tianyuornis
†Songlingornithidae	Hollanda? Piscivoravis? Songlingornis Yanornis? Yixianornis?
†Yanornithidae	Abitusavis Similiyanornis Yanornis

Ornithurae

†Antarcticavis?
†Apatornis
†Cerebavis
†Gallornis
†Guildavis
†Iaceornis
†Kookne
†Limenavis
†Tingmiatornis

†Ichthyornithes

Ichthyornis
Janavis

†Hesperornithes

Baptornis Brodavis Chupkaornis Enaliornis Judinornis Pasquiaornis Potamornis
Hesperornithidae	Asiahesperornis Canadaga Fumicollis Hesperornis Parahesperornis

†Vegaviidae

†Cimolopterygidae

Aves / Neornithes

- see below↓

Aves / Neornithes

Palaeognathae

- see Palaeognathae

Neognathae

Neoaves

Galloanserae

Anserimorphae	see Anserimorphae
Pangalliformes	see Pangalliformes

Incertae sedis

†Asteriornis †Perplexicervix †Qinornis?
†Dromornithidae	Barawertornis Dromornis Genyornis Ilbandornis
†Gastornithiformes	Brontornis? Gastornis Dromornithidae?
†Pelagornithidae	Aequornis Caspiodontornis Cyphornis Dasornis Gigantornis Laornis? Lutetodontopteris Macrodontopteryx Manu? Odontopteryx Odontoptila Osteodontornis Palaeochenoides Pelagornis Proceriavis? Protodontopteryx Protopelicanus? Pseudodontornis Tympanonesiotes

References

Further reading